Delay Lines

Shahoei, Hiva; Yao, Jianping

doi:10.1002/047134608x.w8234

Cited by 14 publications

(4 citation statements)

References 116 publications

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“…For simplicity, we will choose L to verify that / is an irreducible fraction. By combining equations (2) and 3, the output power of the system when the input train of pulses is modulated with such coefficients can be obtained:…”

Section: Proposed Technique and Experimental Setupmentioning

confidence: 99%

“…optical time domain multiplexing can be achieved [1]. Usually a delay line is employed to fine tune the timing of the signal, existing several approaches mainly based on resonant elements with a slow-light effect or on the combination of wavelength dependent dispersion with wavelength converters [2][3][4]. Another alternative to generate time delays is to select a different and longer physical path for the signal [5].…”

Section: Introductionmentioning

confidence: 99%

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Programmable Retiming of an Optical Clock Signal Using the Temporal Talbot Effect

Pérez-Herrera

Erro

Garde

et al. 2019

IEEE Photon. Technol. Lett.

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By using a Fourier processor based on the temporal Talbot effect and the properties of the Discrete Fourier Transform, we propose a scheme that adds an adjustable delay to a train of pulses while simultaneously preserving the clock recovery property of the Talbot effect. The obtained delay can be easily tuned by modifying only the electrical signal applied to an electro-optic modulator. Experimental results prove the validity of the proposal with a fine correspondence between the desired and measured delays all over a complete period of the signal.

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Section: Proposed Technique and Experimental Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Programmable Retiming of an Optical Clock Signal Using the Temporal Talbot Effect

Pérez-Herrera

Erro

Garde

et al. 2019

IEEE Photon. Technol. Lett.

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“…Optical delay lines (ODL) are important components which are used to provide a timed delay in a system. When these ODLs are implemented using integrated chips they show various advantages such as reduced cost, size, weight and power consumption [5]. They have various applications such as optical beam forming networks for antenna arrays, imaging processing units, radio on fibre links and devices, OCT systems and sensing units.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of Ultra low loss Spiral Delay line for Integrated Optical Coherence Tomography

et al. 2021

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We report a design of 55 cm long spiral delay line at 850 nm wavelength. Propagation characteristics were simulated and analysed with fully vectorial Eigen Mode Expansion (EME) method. Bending losses were calculated and analysed for the optimization of minimum bending radius for reported structure. We have also simulated and analysed excess loss for a broadband of 200 nm at 850 nm operating wavelength. An excess loss of less than 0.2 dB is reported for the structure over the entire bandwidth range. The structure was further simulated for individual Transverse Electric (TE) and Transverse Magnetic (TM) modes and the analysis showed better results for TM mode. Reported structure is easy to fabricate, ultra-low loss and also broadband over 200 nm with a foot print of only 6×6 sq. mm. So, this design will improvise the reference arm section and will enhance the depth scanning of integrated optics based optical coherence tomography system.

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“…It brings convenience and energy-saving features to daily life, for example, the delay light control system and the delay air conditioner control system. , It can maintain the safe operation of systems, such as the alternating current (AC) motor control and the time-limit current quick-break protection. , It is also used in controlling the time delay of signals to improve the system’s bandwidth, a.k.a. delay line. − A wide variety of delay characteristic switches have been designed with different mechanical structures or electrical circuits. − ,, However, current devices are usually complex and need an external power source. , This is required to achieve the delay characteristic switching function in a simple but self-powered way, enabling smart systems.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Self-Powered Switch toward Delay-Characteristic Sensors

Wang

Xia

et al. 2020

ACS Appl. Mater. Interfaces

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With the development of the internet of things (IoT) and 5th generation communication technology, construction of smart cities is making a great progress. However, the IoT system needs millions of sensing nodes; therefore, it is rather challenging to power various sensors. Here, we design an electrostatic force-based switch (EFS) that can work as either an optical or an electrical switch. The EFS provides a method to directly detect or control high-voltage electrical systems with delay characteristics. Advantages of the EFS include self-contained delay characteristics, ease of fabrication, low cost, and high stability, especially when used in combination with the triboelectric nanogenerator (TENG) to realize self-powered sensors. Based on the self-powered sensor, a mechanical motion-sensing system is built with high sensitivity and active response to the mechanical trigger. This study proposes a multifunctional self-powered switch, which realizes a high-voltage delay control system and can also combine with the TENG to expand the application of self-powered smart sensing systems.

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Delay Lines

Cited by 14 publications

References 116 publications

Programmable Retiming of an Optical Clock Signal Using the Temporal Talbot Effect

Programmable Retiming of an Optical Clock Signal Using the Temporal Talbot Effect

Design and Simulation of Ultra low loss Spiral Delay line for Integrated Optical Coherence Tomography

Multifunctional Self-Powered Switch toward Delay-Characteristic Sensors

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